Chem Unit 2.1 -- Elements Flashcards
1
Q
Definition of Element:
A
Pure substance that cannot be broken down further
2
Q
Name the three most common types of elements on the table:
A
- metals
- non-metals
- metalloids
3
Q
What are the properties of a metal?
A
hard, shiny, very conductible. Malleable, ductile.
4
Q
What are the properties of a non-metal?
A
- usually gas at room temperature
- brittle solids (breaks easily)
5
Q
What are the properties of metalloids??
A
in between metals and non-metals
6
Q
H
A
Hydrogen.
Colourless, tasteless, light and very flammable.
7
Q
Fe
A
Iron.
Strong metal, very ductile, multivalent.
8
Q
O
A
Oxygen.
Needed to breathe, usually found as a gas
9
Q
Na
A
Sodium.
Very soft metal.
10
Q
Cl
A
Chlorine.
Yellow-green gas, very deadly when concentrated.
11
Q
Hg
A
Mercury.
Liquid at room temp. Shiny, good conductor.
12
Q
Ag
A
Silver.
White hue, malleable.
13
Q
Si
A
Silicone.
Most common element in Earth’s crust after oxygen.
